Lines Matching full:tracing

96 	 Adds a very slight overhead to tracing when enabled.
101 	select TRACING
108 # enabled by all tracers (context switch and event tracer) they select TRACING.
111 # GENERIC_TRACER and TRACING to avoid circular dependencies to accomplish the
114 config TRACING  config
126 	select TRACING
130 # be able to offer generic tracing facilities:
143 	  Enable the kernel tracing infrastructure.
148 	bool "Boot-time Tracing support"
149 	depends on TRACING
153 	  kernel cmdline at boot time for debugging (tracing) driver
170 	  tracing is enabled by the administrator. If it's runtime disabled
189 	bool "enable/disable function tracing dynamically"
194 	  This option will modify all the calls to function tracing
203 	  See the files in /sys/kernel/debug/tracing:
209 	  otherwise has native performance as long as no tracing is active.
248 	  kernel and displays it in /sys/kernel/debug/tracing/stack_trace.
288 	      echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
312 	      echo 0 > /sys/kernel/debug/tracing/tracing_max_latency
340 	 Some files are created in the tracing directory when this
426 	bool "Memory mapped IO tracing"
432 	  implementation and works via page faults. Tracing is disabled by
441 	select TRACING
459 	  Allow tracing users to take snapshot of the current buffer using the
462 	      echo 1 > /sys/kernel/debug/tracing/snapshot
474 	      echo 1 > /sys/kernel/debug/tracing/per_cpu/cpu2/snapshot
476 	  After which, only the tracing buffer for CPU 2 was swapped with
477 	  the main tracing buffer, and the other CPU buffers remain the same.
521 	  /sys/kernel/debug/tracing/trace_stat/branch_annotated
534 	  /sys/kernel/debug/tracing/trace_stat/branch_all
548 	  profiled. Profiling the tracing infrastructure can only happen
566 	bool "Support for tracing block IO actions"
576 	  on a given queue. Tracing allows you to see any traffic happening
582 	  Tracing also is possible using the ftrace interface, e.g.:
585 	    echo blk > /sys/kernel/debug/tracing/current_tracer
586 	    cat /sys/kernel/debug/tracing/trace_pipe
594 	select TRACING
599 	  This allows the user to add tracing events (similar to tracepoints)
637 	select TRACING
640 	  This allows the user to add tracing events on top of userspace
704 	  tracing_map is a special-purpose lock-free map for tracing,
712 	select TRACING
731 	select TRACING
743 	  Inter-event tracing of quantities such as latencies is also
751 	depends on TRACING
806        depends on TRACING
821 	in the tracing directory called "eval_map" that will show the
833 	bool "Record functions that recurse in function tracing"
836 	  All callbacks that attach to the function tracing have some sort